China's wind power mitigation of Electrical Scarcity

wind GeneratorsThe 21st century is the century of renewable energy, wind energy as a very rich and very cheap prices, energy will not be depleted, but also to a large extent made, very clean, no pollution, the climate will not affect the present, no An energy are there so many times after the priority role to play center. Wind power is the world's fastest growing energy, in the past 10 years, the world's wind power plant to an annual 30 percent growth rate in the development. By the beginning of 2003, the global wind turbine capacity of 32 million kilowatts, equivalent to 32 standard nuclear power plant.



The potential of wind power a long time, people to people higher than the price of wind power, citing electricity, wind power has been overlooked as a clean energy and energy shortages and environmental protection for the significance of neglect of wind power as a huge high-tech industry Prospects, but also neglected to promote economic development in remote areas can bring about the great role. When the power shortage. Energy shortage and access to the testator, China should re-recognize the use of wind energy.



First, rapid decline in price of wind power. Have been increasingly close to coal-fired power generation into wood, economic highlights, and wind power generation capacity each doubled, the cost fell 15 percent in recent years the growth of wind power has remained at 30 percent. Currently, China's wind power costs about 05 yuan more than that with China's wind power installed capacity of power generation and localization of the scale, wind power is expected再降into wood. In addition, the external costs of wind power almost zero, or even lower than the cost of nuclear power. According to preliminary calculations, if the cost of internal and external costs of people at the same time costs, wind power is currently the world's economy, the most clean source of energy.



The second is very rich wind power resources. According to preliminary statistics, China's land 10 meters and 15 meters off for the development of wind power resources in the above-100 million kilowatts, equivalent to the development of hydropower resources (390 million kilowatts) of 2.5 times. The 50-metre wind resources will be increased twice. According to existing technologies, ground 50-100 metres of wind resources can be developed and utilized. In 2003, China's power generation capacity of 385 million kilowatts, experts believe that China will be able to rely on wind power generation will double the existing power production.



Third, wind generators  technology daily mature. With the development of science and technology, wind power technology has been quite mature. More large-scale, better performance of the unit who have been developed for the production and test run, can make use of the wind speed will also reduce demand.



Four construction period is short, quick. Thermal power, water and electricity needs of the construction period, to calculate, and in a wind field data under the premise of wind power projects only need to Zhou. , To calculate. Wind building in a short period of time to complete, can solve the power shortage for the immediate need.



The fifth is to contain the development of the greenhouse effect. According to statistics, the production of wind power per 1 million kwh of electricity, will be able to reduce the emission of 600 tons of carbon dioxide, and vigorously develop wind energy can greatly reduce the greenhouse effect of carbon dioxide mitigation of climate warming conditions, can effectively contain dust storm disasters And inhibit the development of desertification.



Six independent power supply in remote rural areas. "Unit, the power grid and high-voltage" model can not effectively solve the dispersion of the western region of the demand for electricity. Development of wind power generation such a decentralized power supply system that can better meet the development of these areas of energy demand, China is not on the grid of wind power generation in rural areas is a huge market.



7 wind generator field is also a tourism project. Wind farm can lead local economic development, such as wind farm in Inner Mongolia although little, but very spectacular scenes, has developed into a tourist area.



The development of wind power delay



In the current energy shortage as a backdrop, the development of wind power of great significance, however, China's wind power development compared with other countries lagging far behind.



Today, Europe's wind turbine  Sijing able to meet 40 million people living needs. European Wind Energy Association in 2020 is expected to nearly 200 million people in Europe will be entirely the use of wind power, accounting for half of the Europeans. In 2003, Germany's wind power equipment industry has replaced the automobile manufacturing and shipbuilding, to become Germany's largest steel user, Germany has recently developed a new long-term plan for the development of wind power, set to at least 2025 for wind power Total volume of 25 percent, to 2050 of the total amount of 50%. Denmark has been successfully using wind power to meet the old percent of the domestic demand for electricity in the past has been advocating the use of nuclear energy in France, also began to formulate a long-term plan to develop wind power.



Wind power generation in some Asian countries has also made rapid development. In 2002, India's wind power installed capacity has reached 1.7 million kilowatts, the country is looking for more than three times as the world's No. 5 producer of wind power. In recent years, the Indian Government to actively promote the development of wind power industry, encourage large private and public enterprise investment and incentive policies to fan the manufacturing industry, currently India's wind power unit parts have been achieving 70 per cent of domestic and greatly reduce the cost of production.



To the end of 2003, China's total installed capacity of wind farm only 567,000 kilowatts, of the nation's total installed capacity of 0.15 per cent, has built 40 wind farms, less than the average capacity of 150,000 kilowatts, far from being a scale. According to our government's latest wind power development goals, to the 2020 National wind power installed capacity to reach 20 million kilowatts, wind power will account for 2% of all electricity. Some experts believe that China's wind power, if the annual rate of 30 percent, to 2020 accounted for 10% of all electricity is also feasible.



Existence of obstacles to the development of wind power



First, the existence of policy obstacles: First, the lack of wind power development objectives and implementation of the strategic planning and the other is the lack of an effective economic incentive policies and strong institutional safeguards third is the lack of fan encourage domestic policies and measures is the lack of an effective 40 The investment and financing system; five companies are China's power grid monopoly strong, the lack of government under the guidance of wind power procurement policy, private enterprises to invest in the "wind power the Internet," there are still structural barriers; six is the lack of strong advocacy, public To be inadequate understanding of renewable resources.



Many countries in the world more aware of the importance of wind energy development, policy and regulations are promulgated a corresponding regulations. Germany enacted a new energy law, the Government to wind power to 9.1 euro cents per kilowatt-hour of subsidies, subsidies for at least five years, since January 1, 2002, decreasing 15 percent every year, even if the high rate subsidies expire, Wind power investors can still enjoy 6.19 euro cents per kilowatt-hour of subsidies.



Secondly, there were technical obstacles: First, China is still no comprehensive monitoring of the wind resource analysis report, large-scale commercial wind power lack of scientific wind feasibility study to assess the support and the other is wind power generation resources during more concentrated, there Wind Power The instability of the impact of the power grid, the huge gap between peak and valley to solve the power problem or third is China's wind resources are mainly concentrated in Inner Mongolia, northwestern region, and coastal areas, the existence of wind power and the grid connection and storage problems, large number of wind Xinhua transmitted to the demand for electricity enterprises are facing difficulties in the four monsoon climate is the existence of wind power on the impact of China's five is a relatively low level of fan equipment manufacturers, Sijing into the international mainstream models of megawatt-class units in China is still in the development stage, the large fan Can only rely on imports or production cooperation with foreign investors.



At present, Denmark, Germany's wind generators capacity in the proportion of power grids can do more than 30 percent, while China's power grid is relatively weak, the local power grid wind power in the proportion of the general control of 12 percent, still a power grids in some areas The collapse of the accident, carried out in wind power and the power grid linking research at the same time it should strengthen the construction of power grids in China. If the wind power accounted for more than 10 percent of the electricity needed to further consider the issue of energy storage solution. With the development of technology, the monsoon on the impact of wind power will become increasingly smaller. China's top priority must be to increase research and development for technical people, vigorously developing wind power talent.

From:http://www.allwindenergy.com/hummer/post/22.htm

About China Die Casting

Modeling is based on making core casting process requirements in determining a good method of modeling, ready to shape the material basis. Casting the accuracy of all of the production process and the economic effects will depend mainly on this procedure. In many modern casting workshop, modeling-made batteries have achieved a mechanized or automated. Sand commonly used form core-making equipment is high, medium and low pressure molding machine and threw sand machine, without me radio pressure molding machine, radio-core, cold and hot-box machines.

Since the casting mold in cooling pouring out after a gate, riser and metal spikes Phi slit, sand casting of the casting also adhesion of the sand, it must be clean-up process. Such devices are the work of the Blasting machine, gate riser cutting machines. Sand-casting sand clean-up is a poor working conditions processes, in the choice of modeling methods, should be taken into account for as much as possible with sand to create convenient conditions for clean-up. Casting a result of some special requirements, but also by casting post-processing, such as heat treatment, plastic surgery, anti-rust treatment, such as rough.

Casting is more economic methods of rough shape, the shape of more complex components demonstrated its economy. aluminum die casting Such as car engine block and cylinder head, ship propellers and exquisite works of art, and so on. Cutting some of the difficult parts, such as the combustion turbine parts do not have to nickel-based alloys casting method can not be forming.

In addition, the die casting of parts of the size and weight to a wide range of metal types of almost unlimited; parts in a general mechanical properties, it is also a wear and corrosion-resistant, shock-absorbing properties, and so is the other metal forming methods such as forging , Rolling, welding, salt, and so can not. Therefore, in casting machine manufacturing methods used in the production of rough parts, and the number is still on the tonnage is the largest.

Casting often use a variety of metal materials, coke, wood, plastic, gas and liquid fuels, such as modeling materials. Have the necessary equipment used in various metal smelting furnace, a Mixer with the various Mixer, a shape-made batteries used in various molding machine, machine-made batteries, cleaning up the castings used for loading sand, Shot Blasting Machine And so on. Casting is also available for special machinery and equipment, and many transportation and material handling equipment.

Casting and other technology have different characteristics, mainly wide adaptability, needed materials and equipment, pollution of the environment. Casting will have dust and harmful gases and noise pollution to the environment, compared to other machinery manufacturing processes to become more serious, need to take measures to control.

Casting product development requirements of the trend is casting a better overall performance, higher accuracy and less headroom and clean the surface. In addition, the requirements of energy-saving society and restore the natural environment of the call also getting higher and higher. To meet these requirements, the new cast alloy will be developed, the new smelting technology and new equipment will be corresponding.

Casting the mechanized production continuously improve the degree of automation in the same time, to be more flexible production development, to expand the volume and variety of different production adaptability. Conserve energy and raw materials of new technologies will be giving priority to the development, have little or no pollution of the new equipment, new technology will be the first attention. Quality control technology in all stages of testing and nondestructive testing, stress determination, there will be a new development

From:http://www.nbdiecasting.com/blog/

China water Filters

water Filter is removed a small amount of liquid in a small solid particles equipment, protective equipment can be the normal work, when the fluid into the home of a certain standard filter cartridge, its impurities was unstoppable, and clean the filter from the water filters from exports, When cleaning, as long as the removable cartridge will be removed, treated to re-load, so maintenance is extremely easy to use.

1. Air water filters

The pollution of the air was clean to the production and living needs of the state, which is to clean the air up to a certain degree.

2. Liquid filter

So that contaminated liquid to be clean production and living needs of the state, which is the liquid reached a certain degree of cleanliness.

3. Filter network

By setting to block spam, now using the information on computer screens as far as possible to meet the requirements. Will be absorbed with the principle of separation of different colors of light

4. Filter light, some do not absorb light out.

From:http://www.cnwaterfilter.com/water_filters/Water_Filter_profile.htm

Knowledge of small wind generator

The role of wind round



Wind round of the wind energy is absorbed and converted into mechanical energy components.



To a certain wind speed and angle of attack role in the blades, so that a rotating blade rotation and torque, wind energy into mechanical energy, the greater the wind, the wind round to accept greater wind energy, wind rotate in the more Fast.





Wind turbine principle



Qibao around a copper wire coil, the magnetic field produced by permanent magnets, coils in the magnetic field in the rotation, cutting a magnetic line EMF, the coil to the faster, cutting lines of magnetic force on the higher rate, the higher the voltage, the external circuit The greater the power, coil and magnet relative rotation of power from the wind generators round by round and the wind generator can be wind generators into electric energy.





The role of controller



The role of controller are: charging, to prevent the rechargeable batteries, a battery to prevent discharge, provided generators to China could be pathway.



A, is generating a single-phase or three-phase AC to DC bottles need to recharge DC, the exchange will be changed by Zheng Liuguan DC (rectifier) to the battery charge.



B, with lead-acid battery is fully charged, continued large current charge, on a charge of battery, battery with a battery charge after the loss of fluid, plate deformation, serious impact on battery life.



C, with lead-acid battery to discharge its external 70 per cent of the rated capacity, should immediately stop external discharge, or excessive discharge, will lead to plate bending, grid damage, loss of material, resulting in battery capacity can not be restored diminish, or even Lead to battery failure.



D, a battery, a wind power generator can not be provided to the battery, charging control system disconnected lines, a wind turbine at this time, no blocked, generators lost their load, the resistance has become a small generator , Then the generator will be doubled speed increase, if encountered strong winds, the generator will be rapidly increased speed, the sooner to the impeller, causing coaster. Therefore, it is necessary to provide a load generator to be Chinese, Chinese-Dutch is usually borne by the resistance, generating electricity through a vent into thermal resistance could be consumed.





The role of inverter



Stored in a battery of DC, DC can only supply electrical work, such as DC, such as light bulbs, and electrical household appliances are basically exchanges, exchange of voltage is 220 volts, so the low-voltage batteries to DC into 220 volts AC ( DC into the exchange, a process known as the inverter), this task by the inverter to complete

From:http://www.allwindenergy.com/hummer/post/Knowledge-about-wind-generators.htm

Wind energy resources and broad prospects for application

Wind energy compared with other, has its obvious advantages: Yun huge, renewable, widely distributed, no pollution. Wind and sun, is inexhaustible of renewable energy wind power without fuel, will not produce radiation or carbon dioxide pollution, radiation or does not produce air pollution but also from the economic point of view, wind instruments Cheaper than solar energy equipment to more than 90%. China's wind energy reserves of great, wide distribution, even more water to enrich. Rational use of wind energy, can reduce environmental pollution, ease the increasing pressure of energy shortages.



    
According to the National Weather Service to the information provided: China's land-based 50-metre high wind resources available for more than 250 million kilowatts, the sea wind resources are more than 750 million kilowatts, far more than can make use of hydropower resources of 378 million kilowatts.



    
In China, about 20 percent of the country's land area is rich in wind energy resources, mainly in the southeast coast and its islands, northwest, north and northeast China, "Three North" region, especially in Xinjiang and Inner Mongolia, wind resources are very rich. Wind energy, as a non-polluting, renewable and low-cost operation of the new energy resources, has great development potential and broad market prospects.



    
At present, China's rapid development of wind energy use, both in the scale of development or level of development, have greatly improved. In 2004, construction projects in the country of about 1.5 million kilowatts installed capacity, which is the construction of about 420,000 kilowatts, the Institute approved 680,000 kilowatts, the project proposals approved the 450,000 kilowatts, including five 100,000 kilowatts concession Some of these projects have been completed and completed by the end of 2005 China's Fan reached 1.266 million kilowatts installed capacity. 



    
Wind energy development still needs time ripe



    
China's wind power industry development situation is very good. Wind energy in the third General Assembly, the exhibition product range, various fan equipment, supporting the full range products, but in these busy behind the weak wind power equipment industry is dragging its hind legs. Despite 20 years of construction and development, China's wind power market is still in an immature state. Compared with developed countries, China's wind energy development in terms of technology, scale, level or in the pace of development still exists a wide gap between. The harsh reality is that the domestic power generation equipment is becoming a low level of China's wind power industry of the main obstacles.



    
A strong wind energy industry is an important foundation for industrial development. Germany, Spain, the Netherlands, Denmark and the United States experience has shown that wind energy industry, without exception, to have a solid technical strength and strong support for the manufacturing sector. In China, the manufacturer because of insufficient long-term investment, non-specialized factories, production is small, too scattered, low levels of concentration, backward technology, product quality instability, low economic efficiency. Therefore, China's wind industry source localization of manufacturing of low, making it difficult to reduce the project cost and the timely provision of spare parts.



    
High-cost, high prices are restricting technology commercialization and promote the use of the biggest obstacles. Compared with similar technology, wind energy production costs are much higher than fossil fuels. The cost of wind power generation is coal-fired electricity 1.7 times, which weakened the wind part of the promotion of economic competitiveness. There are many reasons for the high cost, small-scale production is an important reason. Wind energy production costs are still high. As low-energy conversion efficiency, to improve the conversion rate, on the need to increase the complexity of the system, leading to rising costs. 



     Wind Energy Association said the Secretary-General Qin Haiyan, "wind power industry in China's development will not be plain sailing." Manufacturing as an example to fans. As of 2005, apply to the competent authorities and the so-called wind generators manufacturers to enter the field of large and medium-sized enterprises have more than 50. However, even the most optimistic estimates, China's domestic market will not accommodate too many complete machine manufacturers.



    
Despite facing various difficulties, but in the renewable energy law promulgated and implemented the positive, renewable energy, particularly in the development and utilization of wind energy will surely usher in a period of rapid development. It is learned that China has wind power as the focus of new energy power generation and to develop a long-term development plans, in more than 10 provinces (autonomous regions) plans to build windmills. According to experts predict that 50 years, wind power generating capacity will account for the total generating capacity of 30 to 40 percent.

From:http://www.allwindenergy.com/hummer/post/Wind-energy-resources.htm

Newsun Ball valves

Newsun Industy is one of the important manufacturing and exporting companies in China. We are dealing in sanitary wares, tools and plastic moulds for more than 10 years. Such as faucets, ball valves,shower room fittings, radiators, pipes, sinks, plastic drainers, bathroom accessories, shower room,plastic moulds and so on.



Our company have 3 holding factories, separately for mini ball valves, brass fittings,angle valves and radiators. And we have more than 12 joint-venture factories for other different products in sanitary wares.



Our products are mainly sold to Europe and America. Especially to France, Spain, Italy, Poland, Ukraine and Russia. In year 2007, our turn over is totally US$60,000,000.00 ¡°Good quality, best & quick service, Reasonable price¡¯¡¯ are our three important advantages. We are looking forward to build our good cooperation and friendship with all the clients and friends from the world.

From:http://www.the-china-manufacturer.cn/blog/post/ball-valves.html

three way ball valves

Three-way ball valves have an L- or T-shaped hole through the middle. The different combinations of flow are shown in the picture.

Multi port ball valves with 4 or more ways are also commercially available, the inlet way often being orthogonal to the plane of the outlets. For special applications, such as driving air powered motors from forward to reverse by rotating a single lever operated 4 way ball valve. This valve has two L-shaped ports in the ball that do not interconnect, sometimes referred to as an "x" port.

Ball Valves in sizes up to 2 inch generally come in single piece, two or three piece designs. One piece ball valves are almost always reduced bore, are relatively inexpensive and generally are throw-away. Two piece ball valves are generally slightly reduced (or standard) bore, they can be either throw-away or repairable. The 3 piece design allows for the center part of the valve containing the ball, stem & seats to be easily removed from the pipeline. This facilitates efficient cleaning of deposited sediments, replacement of seats and gland packings, polishing out of small scratches on the ball, all this without removing the pipes from the valve body. The design concept of a three piece valve is for it to be repairable

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